John muir -iietiierington



M. HETHERINGTON. I KB FOB. SPINNING SPINDLES.

Patented Nov. 5, 1889.

(No Model.)

BRA

UNITED STATES PATENT EEicE.

JOHN MUIR IIETIIERINGTON, OF MANCHESTER, COUNTY OF LANCASTER,

ENGLAND.

BRAKE FOR SPlNNlNG-SPlNDLES.

SPECIFICATION forming part of Letters Patent No.'414,536, dated November5, 1889.

Application filed July 10, 1888. Serial No. 279,571. (No model.)Patented in England June 21, 1888, No. 9,070

To all whom it may concern.-

Be it known that I, J OHM MUIR HETHER-ING- TON, machine-maker, asubject'of the Queen of: Great Britain and Ireland, residing atManchester, county of Lancaster, England, have invented an ImprovedBrake for Spinning- Spindles, &c., (for which I have obtained a patentin Great Britain, No. 0,070, dated June 21, 1888,) of which thefollowing is a specification.

My invention relates to the spindles which are mounted to revolve infixed bolsters, in

downward.

which both or all of the bearings of the spindle are contained. In theoperation of doliing the cops, bobbins, or tubes from such spindlesthere is a tendency for the spindle to be lifted in the absence of anyspecial means for the prevention of such lifting.

The object of my invention is to provide a simple and inexpensiveappliance which shall serve the double purpose of a brake to arrest therevolutions of the spindle and of a detent to limit the said lifting ofthe spindle. The said appliance, which I have termed a detent-brake,consists of a single casting which is so shaped and applied as todispense with the necessity for using a hinge or hinge-pin, or a screwor fastening, or specially-applied additional part. The saiddetent-brake is formed with an aperture to fit upon the collar of thebolster with freedom to permit of a suitable amount of rocking movementon the part of the detent-brake. From the central or nearly central partin which this aperture is formed two arms extend, one backward andupward and the other forward and The upper end of the backwardlyprojecting arm extends over the wharve and toward the sleeve, and isadapted to act as a brake when pressed against the said sleeve. Thefront arm extends downward below the spindle-rail, and an inclined orcurved projection or swell extends from this front arm below the railfor a short distanoe.

My invention will be clearly understood when the accompanying drawingsare re ferred to.

In the drawings, Figure 1 is a perspective view of the saiddetent-brake. Fig. 2 repre sents it in position during the ordinaryworking of the spindle. Fig. 3 represents the spindle slightly liftedfrom its working position, and shows how the detent-brake prevents anyfurther upward movement.

The detent-hralre consists simply of a single casting, which is byprefie'rence provided with a lining of leather or other suitablematerial. With the exception of this lining the appliance consists onlyof one piece of metal, which does not require anyfastening or hingepinor any adjunct other than the ordinary spindle rail and bolster to keepit in position or to serve as a fulcrum for its movement.

For convenience I will describe the detentbrake as consisting of threeparts-a central part a, an upward. extension a, and a downward extensiona In the part ct is formed an aperture 0 0. (Clearly shown in Fig. 1.)This aperture is shaped to suit the form of the collar 1), which isformed upon the spindle-bolster h. This collar has two fiat sides If, asis usual, and flat places are formed at 0 con the sides of the aperturein part a to fit the flat places upon the said collar.

lVhen the detent-brake is seated in position upon the spindle-rail d, asseen in Fig. 2, the collar I) nearly fills the aperture in a, so thatthe detent-brake is kept in position without any screw-.pin orfastening, and is prevented from turning round upon the bolster by thetwo flat sides upon the collar Z). The upper end'of the extension a isformed with a part (6*, which projects over the ordinary wharve (2,formed upon the ordinary sleeve 6, the latter being fixed upon thespindle c and the face of the projection of which is toward the saidsleeve. is hollowed to suit the shape of the sleeve, as seen in Fig. l,and this hollowed part is provided with a leather lining f, or with alining of felt, or of cloth, wood, or other material, or any such liningmay be dispensed with. The downward extension a extends below thespindle-rail and is slightly inclined away from it, as seen in Fig. 2.Upon the lower end of this extension are formed projections consistingin this instance of two lugs 61; a one of these being indicated by thedotted lines in Fig. 1. These lugs are intended to extend to some extentbelow the spindle-rail, as seen in Fig. 1. \Vhen the part a is pressedtoward the spindle-rail, the detent-brake being prevented by thecollar 1) from moving horizontally upon the rail beyond the limits ofthe slight freedom allowed by the size of the aperture in a, thedetentbrake will turn upon the corner d of the rail (1, and the part awill rise and the projectiona will move into contact with the sleeve e,and if the pressure upon a be sufiicient the rotation of the spindlewill be arrested. In ordinary practice the pressure would be exertedupon the part a by the knee of the operative at the time of taking offand putting on the bobbin for piecing the ends or for replacing thebobbin while the frame is working. Upon the pressure being removed thedetent-brake would immediately fall free of the sleeve into the positionshown in Fig. 2. If the operation of doffing lifts the spindle, andtherefore the sleeve 6 and wharve e, the latter comes into contact withthe under side of the projection a as seen in Fig. 3, and if the upwardstrain upon the spindle be sufficient the lugs a will be lifted intocontact wit-h the corner d of the spindle-rail, as appears in Fig. 3.\Vhen this figure is examined, it will be seen that a vertically-actingupward force exerted at will jam the hollow face of a against thesleeve, which will in turn be. forced to one side in its bearings, andwill at the same time be prevented from rising further or fromrevolving, so that the appliance will answer the double purpose of adetent and of a brake.

The detent-brake maybe pressed in dies or otherwise formed than by theoperation of casting. Two lugs to are provided, partly for sake oflightness and partly because if the part a were formed with a singleprojection extending across'the width of the said part, or with acentral projection, such projection would at times come into contactwith the ordinary nut 12 which secures the bolster to the rail.

Having fully described my invention, I state that What I claim is 1. Adetent-brake formed with a central part to sit upon the spindle-rail, anupward extension forming a brake for the spindle, and a downwardextension to engage with the under side of the rail, substantially asdescribed.

2. A detent-brake having a central part to sit upon the spindle-rail ofa spinning or doubling machine, an aperture to nearly fit the collar ofthe spindle-bolster, an upward extension provided with a projectionshaped to act as a brake upon the spindle-sleeve, and a downwardextension formed with lugs to pass below the corner of the spindle-rail,substantially as set forth.

3. The combination of a spindle having a wharve, a spindle-rail, and abolster having a collar with a detent-brake having an aperture toembrace the bolster-collar, an upward extension to brake the spindle,and a downward extension to engage with the rail.

In testimonywhereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN MUIR I-IETI-IERINGTON.

\Vitnesses:

DAVID FULTON, FREDK. DILLON.

